CSTM
Constellium SE
PE ratio, current and historical analysis
- Stocks
- Basic Materials
- NYSE: CSTM
- PE Ratio
The P/E ratio for Constellium SE stock stands at 9.12 as of Jul 13, 2026. This takes into account the latest EPS of $3.16 and stock price of $28.81. A decrease of 62% has been observed in the PE ratio compared to its average of 24.1 of the past four quarters.
CSTM PE ratio history
Over the last ten years, the average PE ratio of Constellium SE has been 20.47. The current 9.12 price-to-earnings ratio is 55% less than the historical average. Analyzing the last ten years, CSTM's PE ratio reached its highest point in the Mar 2020 quarter at 130.25, with a price of $5.21 and an EPS of $0.04. The Sep 2022 quarter saw the lowest point at 3.7, with a price of $10.14 and an EPS of $2.74.
Constellium SE PE ratio by year
Maximum annual increase: 529.16% in 2019
Maximum annual decrease: -64.22% in 2025
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2025 | 9.67 | -64.22% | $18.85 | $1.95 |
| 2024 | 27.03 | 40.85% | $10.27 | $0.38 |
| 2023 | 19.19 | 247.02% | $19.96 | $1.04 |
| 2022 | 5.53 | -39.5% | $11.83 | $2.14 |
| 2021 | 9.14 | N/A | $17.91 | $1.96 |
| 2020 | N/A | N/A | $13.99 | -$0.16 |
| 2019 | 29.13 | 529.16% | $13.4 | $0.46 |
| 2018 | 4.63 | N/A | $6.99 | $1.51 |
| 2017 | N/A | N/A | $11.15 | -$0.3 |
| 2016 | N/A | N/A | $5.9 | -$0.04 |
| 2015 | N/A | N/A | $7.7 | -$5.67 |
| 2014 | 31.6 | 46.64% | $16.43 | $0.52 |
| 2013 | 21.55 | N/A | $23.27 | $1.08 |
| 2012 | N/A | N/A | N/A | $1.67 |
| 2011 | N/A | N/A | N/A | -$2.15 |
Constellium SE PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Mar 2026 | 7.78 | -19.54% | $24.58 | $3.16 |
| Dec 2025 | 9.67 | -48.01% | $18.85 | $1.95 |
| Sep 2025 | 18.6 | -69.23% | $14.88 | $0.8 |
| Jun 2025 | 60.45 | 193.59% | $13.3 | $0.22 |
| Mar 2025 | 20.59 | -23.83% | $10.09 | $0.49 |
| Dec 2024 | 27.03 | 49.58% | $10.27 | $0.38 |
| Sep 2024 | 18.07 | 26.54% | $16.26 | $0.9 |
| Jun 2024 | 14.28 | -6.97% | $18.85 | $1.32 |
| Mar 2024 | 15.35 | -20.01% | $22.11 | $1.44 |
| Dec 2023 | 19.19 | 43.42% | $19.96 | $1.04 |
| Sep 2023 | 13.38 | 43.87% | $18.2 | $1.36 |
| Jun 2023 | 9.3 | -3.23% | $17.2 | $1.85 |
| Mar 2023 | 9.61 | 73.78% | $15.28 | $1.59 |
| Dec 2022 | 5.53 | 49.46% | $11.83 | $2.14 |
| Sep 2022 | 3.7 | -29.66% | $10.14 | $2.74 |
CSTM Price vs fair value
CSTM average PE ratio chart
What this chart measures
The Historical Valuation Regime chart shows where the stock's current valuation sits relative to its own historical valuation range over the selected lookback period.
This is a history-relative tool, not a market-relative percentile. It does not compare the stock to other companies. Instead, it compares each historical valuation reading to the stock's own past readings.
Percentile logic
The threshold lines are calculated them from the stock's real historical values using percentile interpolation. That is why some colored bands are narrow while others are wide: the band widths reflect how the stock actually traded through time.
Regime map
| Historical percentile | Regime | Chart meaning |
|---|---|---|
| 0-10 | Historically Low | Deep cheap zone |
| >10-25 | Below Average | Cheap relative to history |
| >25-75 | Average | Within the normal historical range |
| >75-90 | Above Average | Expensive relative to history |
| >90-100 | Historically High | Extreme or stretched valuation |
How to read each part
| Chart element | What it tells you |
|---|---|
| Main line | The actual historical valuation values over time for the selected metric. |
| Dashed horizontal lines | The stock's computed P10, P25, Median, P75, and P90 thresholds for the selected period. |
| Colored bands | The historical valuation zones between those thresholds. |
| Metric boxes | Current ratio, historical median, current percentile, and current regime. |
| Timeline strip | A condensed regime history showing how the stock moved between cheap, fair, and expensive states across each observation. |
Important metric definitions
Current Percentile is the percentile rank of the latest valid historical observation within the selected lookback range.
Current Regime is assigned directly from the latest observation's percentile bucket using the fixed 10 / 25 / 75 / 90 cutoffs shown above.
How to use it well
This chart is most useful for answering a narrow question: Is this stock trading high, low, or normal relative to its own history? It works best alongside growth, profitability, and forward-looking business analysis, because a stock can deserve a higher or lower regime if its business quality has changed.
CSTM's current PE ratio is under its 3, 5 and 10-year averages.
PE comparison
Constellium SE's price to earnings (P/E) of 9.12 is lower than the Basic Materials sector, the industry and its peers average. Looking at the Basic Materials sector average of 20.83, Constellium SE's price to earnings (P/E) is 56% lower.
CSTM PE vs peers
When compared to its peer stocks RS and AA, CSTM's PE ratio is lower. Constellium SE's PE ratio is trading below the peer average of 16.75.
| Stock name | PE ratio | Market cap |
|---|---|---|
| CSTM Constellium SE | 9.12 | $3.92B |
| AA Alcoa Corp | 12.4 | $12.86B |
| CENX Century Aluminum Co | 12.9 | $4.49B |
| KALU Kaiser Aluminum Corp | 16.71 | $2.59B |
| RS Reliance Steel & Aluminum Co | 24.98 | $19.67B |
Frequently asked questions
What is Constellium SE's PE ratio?
CSTM's price to earnings ratio is 9.12 as of Jul 13, 2026.
What is the 3-year average PE ratio for Constellium SE (CSTM)?
The average PE ratio for CSTM stock over the past 3 years is 20.4.
What is the 5-year average PE ratio for Constellium SE (CSTM)?
The average PE ratio for CSTM stock over the past 5 years is 14.84.
What is the highest PE ratio for CSTM?
Over the last ten years, the Mar 2020 quarter recorded the highest quarterly PE ratio at 130.25.
How does the current PE ratio for CSTM compare to its historical average?
CSTM's price to earnings ratio is currently 55% below its 10-year historical average.
Why is Constellium SE's PE ratio so low?
A company with a lower PE ratio may indicate that the market has lower growth expectations for the company's future earnings.
How is CSTM's PE ratio calculated (Constellium SE PE ratio formula)?
You can calculate the P/E ratio by dividing the most recent stock price by the trailing twelve months earnings per share(EPS). As of today (Jul 13, 2026), Constellium SE's share price is $28.81. The company's earnings per share for the trailing twelve months (TTM) ending Mar 2026 is $3.16. Therefore, Constellium SE's price to earnings ratio for today is 9.12. PE RATIO(9.12) = STOCK PRICE($28.81) / TTM EPS($3.16)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.